Composer 2 vs Muse Spark
Head-to-head comparison across 2benchmark categories. Overall scores shown here use BenchLM's provisional ranking lane.
Verdict
Muse Spark leads for most workloads.
Based on BenchLM composite scores, July 2026.
Composer 2
62
Muse Spark
76
Pick Muse Spark if you want the stronger benchmark profile. Composer 2 only becomes the better choice if agentic is the priority.
Category Radar
Head-to-Head by Category
Category Breakdown
| Benchmark | Composer 2 | Δ | Muse Spark |
|---|---|---|---|
| Coding | 58.0 | → 3.7 | 61.7 |
| Agentic | 61.7 | ← 2.7 | 59.0 |
| Reasoning | — | — | 42.5 |
| Knowledge | — | — | 50.4 |
| Multimodal | — | — | 82.5 |
Operational Comparison
Composer 2
Muse Spark
$0.5 / $2.5
N/A
N/A
N/A
N/A
N/A
200K
262K
Quick Verdict
Pick Muse Spark if you want the stronger benchmark profile. Composer 2 only becomes the better choice if agentic is the priority.
Muse Spark is clearly ahead on the provisional aggregate, 76 to 62. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.
Muse Spark's sharpest advantage is in coding, where it averages 61.7 against 58. The single biggest benchmark swing on the page is Terminal-Bench 2.0, 61.7% to 59%. Composer 2 does hit back in agentic, so the answer changes if that is the part of the workload you care about most.
Muse Spark gives you the larger context window at 262K, compared with 200K for Composer 2.
Benchmark Deep Dive
Frequently Asked Questions (3)
Which is better, Composer 2 or Muse Spark?
Muse Spark is ahead on BenchLM's provisional leaderboard, 76 to 62. The biggest single separator in this matchup is Terminal-Bench 2.0, where the scores are 61.7% and 59%.
Which is better for coding, Composer 2 or Muse Spark?
Muse Spark has the edge for coding in this comparison, averaging 61.7 versus 58. Composer 2 stays close enough that the answer can still flip depending on your workload.
Which is better for agentic tasks, Composer 2 or Muse Spark?
Composer 2 has the edge for agentic tasks in this comparison, averaging 61.7 versus 59. Inside this category, Terminal-Bench 2.0 is the benchmark that creates the most daylight between them.
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